#include <stdio.h>
int main()
{
	int a,b;
	char c;
	scanf("%d%c%d",&a,&c,&b);
	if(c=='+')
		printf("%d",a+b);
	else if(c=='-')
		printf("%d",a-b);
	else if(c=='*')
		printf("%d",a*b);
	else if(c=='/')
		printf("%d",a/b);
   return 0;
}
